Malicious PDF — malware analysis report

Static analysis result for SHA-256 772c0eb56dbd826a…

MALICIOUS

PDF

48.1 KB Created: 2020-08-23 09:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9733482bcf4143c87f4d3d41aa943273 SHA-1: 06531fb526dec8b3cfeca4d5488726ad911d2190 SHA-256: 772c0eb56dbd826ace5a0ce535c1e863259f0c4dd6d7eb9d812ee3acd8d930b8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary redirector identified as malicious. The document body, though partially corrupted, includes the malicious URL and appears to be a lure for a 'guide'. The heuristic firings strongly indicate malicious redirector and link farm activity, suggesting the PDF is designed to lead users to harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=blade+and+soul+warden+pve+guide In PDF document text
    • http://tiwisol.boomerbones.com/uploads/1/3/1/0/131071157/9709720.pdfIn PDF document text
    • http://gedawofaj.rmshiles.com/uploads/1/3/1/6/131606834/5845415.pdfIn PDF document text
    • http://files.rethinkreframerelax.com/uploads/1/3/2/7/132710745/jizebivigupazowiba.pdfIn PDF document text
    • http://files.altrimondifirenze.com/uploads/1/3/0/8/130873717/f1c167b169fbe.pdfIn PDF document text
    • http://batebibu.softerthanbrittle.com/uploads/1/3/1/4/131407089/2348155.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/73465918476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2246/6720/files/vowojejupesat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/botw_title_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4203/8182/files/nurinebazatexiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/adobe_animate_cc_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7433/0517/files/vawarojiwenogomopajibofad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/wizarexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0203/5351/files/last_word_quest_guide_destiny_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/tesla_effingham_performance_center_august_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/jeep_cherokee_2017_maintenance_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2402/1664/files/pasozinawesoxegomilujud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3925/files/bacteria_cell_wall_structure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3543/3882/files/gowaxozalan.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4E 5328 bytes
SHA-256: 08607aab3e60c8cb69ed848cb3ff134b628ffd86f8ef755b27f89fbfc3c7718e
font_01_sfnt_off00008f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F8E 10360 bytes
SHA-256: 109bbba8595602325fb788dd2f66eb71b3c2b0780e52988521e39e640728ab45

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